CN101436789A - Method for implementing power supply backward in scheduling automatization system - Google Patents
Method for implementing power supply backward in scheduling automatization system Download PDFInfo
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- CN101436789A CN101436789A CNA2008101875861A CN200810187586A CN101436789A CN 101436789 A CN101436789 A CN 101436789A CN A2008101875861 A CNA2008101875861 A CN A2008101875861A CN 200810187586 A CN200810187586 A CN 200810187586A CN 101436789 A CN101436789 A CN 101436789A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention discloses a method for implementing power supply tracking in a scheduling automation system. The method comprises the following steps: in a complex power grid, quickly searching an actual power supply path for certain import power supply equipment by using depth priority and wide priority search algorithms according to a power grid module and the real-time operation state of the power grid; and displaying actual power supply path clearly and directly. With the method, a picture on which a power supply path graph is drawn already pops up as soon as operating equipment is selected randomly on a man-machine interface of an energy management system, so the method provides strong technical support for guaranteeing power supply task of a significant load, can help power grid scheduling personnel to grasp the structure of the power grid completely and rapidly and provide technical guarantee for safe and stable operation of the power grid.
Description
Technical field the present invention relates to the implementation method of a kind of power supply backward in dispatch automated system, particularly, relate to the processing method of a kind of processing of on-line search method, especially looped network of supply path of important load and many power supplys, multipath and with graphics mode method of showing directly perceived.
Background technology is along with power system development, and scale of power is increasing, and the mode of connection and operational mode become increasingly complex, and electric load is more and more heavier, thereby causes the fail safe of system and stability to be subjected to more and more acid test.All there is the power load that needs priority support in each power supply enterprise, supply path to these power loads carries out the important means that real time monitoring is its Supply Security of assurance, seek a kind of method that can search for the important load supply path rapidly accurately, just become the joint demand of power supply enterprise.The timely grasp of the electric network model of complete and accurate and real time operation mode is the precondition that " power supply backward " function realizes.
When in the system of bulky complex, seeking the power supply of low-voltage equipment, under the situation that system configuration is understood very much, must need to expend the long time with existing technology.Can not in time grasp the variation of system configuration, even might carry out misoperation system.
Summary of the invention the present invention aims to provide the implementation method of a kind of power supply backward in dispatch automated system, in order to overcome the defective of existing method.Technical problem to be solved is that switch, disconnecting link state according to electric network model that comprises various complicated connection types and collection in real time provide a kind of method fast and accurately, search out the power supply and the supply path of important load.Specifically, invent a kind of method of handling the complex electric network model exactly, in the electric network model of complexity, from certain appointed equipment, utilize depth-first and breadth First algorithm, search the equipment (being power supply point) that meets some specified requirements, note the equipment of process in the search procedure simultaneously, and the visual supply path of its formation is shown.
Technical scheme of the present invention is as follows:
The implementation method of a kind of power supply backward in dispatch automated system is characterized in that carrying out according to following steps:
From a certain designated equipment, search for the non-switch tool equipment that another links to each other, each equipment of process is all charged to storehouse and is preserved, if come a howler, then return an equipment and continue search other equipment that does not search as yet that this equipment connected, begin to continue search forward from new equipment again,, continue rollback if the equipment that this equipment connected was all searched for;
Wherein, from the method for each another non-switch tool equipment of equipment search be: all terminals that find current device, search for from terminal, the terminal of having searched needn't be searched again, and transformer other terminal except that highest voltage level needn't be searched again;
If current device is a bus, search all non-switch tool equipment that link to each other with this bus, after searching these non-switch tool equipment, also to accept or reject or determine the sequencing of next step search according to electric pressure for circuit and transformer: if bus is a high voltage bus, then to connect must be low-voltage equipment to the transformer other end, abandoned; If bus is a low-voltage bus bar, then to connect must be high-tension apparatus to the transformer other end, first search, but circuit should not abandon, and waits until the back and continues search;
Wherein, from the method for other non-switch tool equipment of terminal search be: find the affiliated tie point of this terminal, find all terminals that are connected to self from this tie point again, to the arbitrary terminal that finds, judge its corresponding device type, if be non-switch tool equipment, then think and find, the depth-first search algorithm is finished this search, but for the BFS algorithm, then can not finish, move back one deck and continue search,, judge its state if the terminal that finds is switch or disconnecting link equipment, if state is for closing, the other end that then jumps to this switch tool continues search, if state, is then thought dead end for dividing, after each terminal of this tie point was all searched for, then move back one deck and continue search.
To each equipment in the supply path that finds power supply point, all to proceed search, so that can search other power supply point to the equipment of not searching in the terminal do not searched or its attached device.
After all search finishes, will arrive a plurality of paths of same power supply point and accept or reject, only reservation is the shortest, promptly through the minimum paths of equipment.
After main supply path search finishes, to all switches on the main supply path, check whether backup auto-activating device is arranged, if having, then former switch is disconnected that the prepared auto restart switch closure is searched for power supply again according to the searching algorithm of main path, nationality is to search backup path.
After supply path forms, according to the parameters such as device type on this path, draw the winding diagram of supply path automatically, show in the window that ejects, nationality is to realize the automatic displaying of power supply and supply path.
Electric network model is the precondition that " power supply backward " function realizes, it is described by " terminal ", " tie point ".
So-called " terminal " all is subordinated to equipment, and it is just as " hand " of equipment, and " handing in hand " by terminal between equipment and the equipment couples together.The terminal number of distinct device is different, and equipment such as switch, disconnecting link, circuit, series capacitance, series reactance have two terminals; Transformer divides three-circuit transformer (comprising autotransformer) and two winding transformer, and three volumes become externally three terminals, and two volumes become two terminals; Bus, generator, load, shunt capacitor, shunt reactor etc. all have only a terminal.
So-called " tie point " similar a kind of " container ", can comprise one or more terminals, each terminal belongs to different equipment respectively, and these terminals are owing to there is identical tie point, so can think that they link together, thereby can think further that the equipment under them links together.
As seen, have two equipment with upper terminal to can be regarded as " contact element " in the electrical network, can the equipment in the electric network model be linked together by them, the equipment that has only a terminal is except bus, all belong to " final element ", promptly be in the tip in the network.Though bus has only a terminal, it is more special, is the place that various contact elements cross.Usually this intersection is called " node ", various contact elements (except switch tool) are called " branch road ".Can become " node " except bus, also comprise joint of equipment such as the neutral point, two of three-circuit transformer or many circuits etc.
Network modelling is exactly the relation between relation, terminal and the tie point that will set up between terminal and the corresponding device.Can find equipment under it and affiliated tie point easily from terminal, slave unit can find its all terminals, can find all terminals that are connected to self from tie point.
Set up electric network model, just can search for.This method is based on the depth-first search algorithm.The basic principle of depth-first search algorithm: according to the heuristic search forward of certain condition, if come a howler in advancing then return an alternative path and continue search, till finding the target that satisfies condition.In conjunction with this example, search condition is exactly the annexation of setting up by terminal, tie point between each equipment in the electric network model, can make us find another adjacent equipment from an equipment (is to make these two equipment set up contact by modeling tool electric network model, under reality, be exactly that these two equipment rooms have direct electrical link), in the process of advancing and reconnoitering, situation about coming a howler has following several:
1, search terminal equipment, for example generator, transformer, shunt capacitor, shunt reactor etc. from these terminal equipments, again can not find miscellaneous equipment;
2, the switch that searches/disconnecting link state disconnects;
Mistake during 3, owing to model creation from this equipment, does not search miscellaneous equipment.
The condition of power supply point is not changeless, can be generator, can be the 220kV bus yet.Why the 220kV bus is considered as power supply point, is because the grid structure of 220kV is more stable, firm, and generally is annular electric supply.
Bus is the place that circuit or transformer branch road cross, and for bus, utilizes the BFS algorithm, searches all " branch roads " of linking to each other with bus, can effectively improve search efficiency.
The electric pressure difference of transformer three ends, in view of the characteristics of " power supply backward ", search transformer after, should be only begin to continue search from the terminal of highest voltage level, other terminal is then abandoned.
Good effect of the present invention is: this method can clearly show the supply path of equipment that the user is concerned about, complicated network configuration is oversimplified, and when the voltage indexes of low voltage side is defective, can upwards search the source easily step by step, thereby for the power supply support mission of important load provides strong technical support, but also can help the dispatching of power netwoks personnel more comprehensively, promptly to grasp electric network composition, for safety, the stable operation of electrical network provides technical guarantee.
Specifically, the present invention has following characteristics:
(1), can be according to the electric network model of having set up in the EMS, (switch, disconnecting link disconnect, and represent that this path is obstructed in conjunction with the switch of gathering in real time, disconnecting link state again; Otherwise, can pass through during search), search for its power supply and supply path; Electric network model or switch, disconnecting link state change, and cause power supply and supply path to change, and algorithm can accurately be discerned.
(2) if a plurality of power supplys, mulitpath are arranged to this load power supply, can be comprehensively, accurately, search promptly comes out.
(3), for ring network power supply, can correctly seek power supply, avoid cyclic search.
(4), for the local looped network in the supply path, can reject redundant equipment, provide shortest path.
(5), for the displaying directly perceived of supply path, can generate figure automatically, need not manual intervention; Automatic processing equipment spacing, mark device name in the figure that generates, make do not have intersection in the figure, dislocation-free, nothing cover; Equipment in the figure can be painted automatically according to its electric pressure; Have under the situation of many supply paths, merge the same road segment in the different paths automatically, make graphical display more clear, directly perceived.
The invention will be further described below in conjunction with concrete enforcement for embodiment.
Overall process is such: from a certain designated equipment, search for the non-switch tool equipment that another links to each other, each equipment (comprising switch tool) of process is all charged to storehouse and is preserved.If come a howler (being the said several situations in front), then return an equipment and continue search other equipment that does not search as yet that this equipment connected, begin to continue search forward from new equipment again,, continue rollback if the equipment that this equipment connected was all searched for.
From the process of each another non-switch tool equipment of equipment search is such: find all terminals of current device, search for from terminal.During the terminal determining to search for several special circumstances are arranged, the terminal of having searched needn't have been searched again, and transformer other terminal except that highest voltage level needn't have been searched again.
If current device is a bus, the method that should adopt depth-first, breadth First to combine searches all non-switch tool equipment that link to each other with this bus.After searching these non-switch tool equipment, also will accept or reject or determine the sequencing of next step search according to electric pressure for circuit and transformer: if bus is a high voltage bus, then to connect must be low-voltage equipment to the transformer other end, can abandon; If bus is a low-voltage bus bar, then to connect must be high-tension apparatus to the transformer other end, should first search, but circuit should not abandon, and should wait until the back and continue search.
From the process of other non-switch tool equipment of terminal search is such: find the affiliated tie point of this terminal, find all terminals that are connected to self from this tie point again.To the arbitrary terminal that finds, judge its corresponding device type, if be non-switch tool equipment, then think and find, can finish this search to the depth-first search algorithm, but, then can not finish for the BFS algorithm, move back one deck and continue search.If the terminal that finds is switch or disconnecting link equipment, judge its state, if, then jumping to the other end of this switch tool for closing, state continues search, if state, is then thought dead end for dividing.After each terminal of this tie point was all searched for, then move back one deck and continue search.
In sum, the overall search flow process is such: the not search terminal of equipment → terminal → tie point → other terminal → other terminal corresponding device → miscellaneous equipment → new tie point ... in search procedure, the sign of wanting recording equipment whether to search for, and the equipment that will search charges to storehouse, in the search procedure to terminal, also will write down the sign whether terminal was searched for, also the terminal that has searched to be charged to storehouse, the rollback during searchable like this failure.
Note also,, all will proceed search, so that can search other power supply point to the equipment of not searching in the terminal do not searched or its attached device to each equipment in the supply path that finds power supply point.
After all search finished, indivedual supply paths may have been walked some detours and just find power supply point, and are convenient when showing, a plurality of paths to same power supply point can be accepted or rejected, general the shortest (promptly minimum through the equipment) paths that only keeps.
In addition, utilize the present invention can also search backup path.After main supply path search finishes,, check whether backup auto-activating device is arranged,, then former switch disconnected that the prepared auto restart switch closure is searched for power supply again according to the searching algorithm of main path if having to all switches on the main supply path.
At last, be exactly that the automatic of power supply and supply path showed.After supply path forms,, draw the winding diagram of supply path automatically, in the window that ejects, show according to the parameters such as device type on this path.During demonstration,, note for reaching attractive in appearance, effect clearly:
(1), note treatment facility spacing, mark device name in the figure that generates, make do not have intersection in the figure, dislocation-free, nothing cover;
(2), the equipment in the figure can be painted automatically according to its electric pressure;
(3), have under the situation of many supply paths, merge the same road segment in the different paths automatically, make graphical display more clear, directly perceived.
Claims (5)
1, the implementation method of a kind of power supply backward in dispatch automated system is characterized in that carrying out according to following steps:
From a certain designated equipment, search for the non-switch tool equipment that another links to each other, each equipment of process is all charged to storehouse and is preserved, if come a howler, then return an equipment and continue search other equipment that does not search as yet that this equipment connected, begin to continue search forward from new equipment again,, continue rollback if the equipment that this equipment connected was all searched for;
Wherein, from the method for each another non-switch tool equipment of equipment search be: all terminals that find current device, search for from terminal, the terminal of having searched needn't be searched again, and transformer other terminal except that highest voltage level needn't be searched again;
If current device is a bus, search all non-switch tool equipment that link to each other with this bus, after searching these non-switch tool equipment, also to accept or reject or determine the sequencing of next step search according to electric pressure for circuit and transformer: if bus is a high voltage bus, then to connect must be low-voltage equipment to the transformer other end, abandoned; If bus is a low-voltage bus bar, then to connect must be high-tension apparatus to the transformer other end, first search, but circuit should not abandon, and waits until the back and continues search;
Wherein, from the method for other non-switch tool equipment of terminal search be: find the affiliated tie point of this terminal, find all terminals that are connected to self from this tie point again, to the arbitrary terminal that finds, judge its corresponding device type, if be non-switch tool equipment, then think and find, the depth-first search algorithm is finished this search, but for the BFS algorithm, then can not finish, move back one deck and continue search,, judge its state if the terminal that finds is switch or disconnecting link equipment, if state is for closing, the other end that then jumps to this switch tool continues search, if state, is then thought dead end for dividing, after each terminal of this tie point was all searched for, then move back one deck and continue search.
2, the implementation method of power supply backward as claimed in claim 1 in dispatch automated system, it is characterized in that: to each equipment in the supply path that finds power supply point, all to proceed search, so that can search other power supply point to the equipment of not searching in the terminal do not searched or its attached device.
3, the implementation method of power supply backward as claimed in claim 1 in dispatch automated system is characterized in that: after all search finishes, will arrive a plurality of paths of same power supply point and accept or reject, only reservation is the shortest, promptly through the minimum paths of equipment.
4, the implementation method of power supply backward as claimed in claim 1 in dispatch automated system, it is characterized in that: after main supply path search finishes, to all switches on the main supply path, whether check has backup auto-activating device, if have, then former switch is disconnected the prepared auto restart switch closure, searching algorithm according to main path is searched for power supply again, and nationality is to search backup path.
5, the implementation method of power supply backward as claimed in claim 1 in dispatch automated system, it is characterized in that: after supply path forms, according to the parameters such as device type on this path, automatically draw the winding diagram of supply path, show that in the window that ejects nationality is to realize the automatic displaying of power supply and supply path.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101875861A CN101436789A (en) | 2008-12-26 | 2008-12-26 | Method for implementing power supply backward in scheduling automatization system |
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| CNA2008101875861A CN101436789A (en) | 2008-12-26 | 2008-12-26 | Method for implementing power supply backward in scheduling automatization system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895115A (en) * | 2010-06-30 | 2010-11-24 | 周锡卫 | Method for constructing distributed power supply smart grid with hierarchy structure |
| CN102055242A (en) * | 2010-12-03 | 2011-05-11 | 湖州电力局 | Power grid model based communication link tracking method |
| CN103020154A (en) * | 2012-11-23 | 2013-04-03 | 中国电力科学研究院 | Complete backspacing searching method for tracing reasons of power failure after appearance of power distribution network fault |
| CN103094990A (en) * | 2011-11-03 | 2013-05-08 | 国家电网公司 | Control method and device for radiation power grid |
| CN103248041A (en) * | 2013-03-29 | 2013-08-14 | 国家电网公司 | Looped network detection method based on bus depth conflict calculation |
| CN103440396A (en) * | 2013-05-23 | 2013-12-11 | 贵州电网公司电力调度控制中心 | Intelligent analysis ticket making method and system of dispatch operation ticket |
| CN105183960A (en) * | 2015-08-25 | 2015-12-23 | 国网北京市电力公司 | Generation method and apparatus for grid wiring diagram |
| CN106451412A (en) * | 2016-05-25 | 2017-02-22 | 国网山东省电力公司日照供电公司 | Power supply traceability-based important load power protection decision technology and visual display method |
| CN106571628A (en) * | 2016-11-11 | 2017-04-19 | 国网山东省电力公司青岛供电公司 | Method and apparatus for identifying connection relationships between components in power distribution network |
| CN103955789B (en) * | 2014-04-18 | 2017-07-11 | 国电南瑞科技股份有限公司 | A kind of supply path analysis method based on allotment Integrated Model |
| CN107145963A (en) * | 2017-04-06 | 2017-09-08 | 浙江大学 | A kind of power distribution network method for searching path based on depth-first |
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2008
- 2008-12-26 CN CNA2008101875861A patent/CN101436789A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895115A (en) * | 2010-06-30 | 2010-11-24 | 周锡卫 | Method for constructing distributed power supply smart grid with hierarchy structure |
| CN101895115B (en) * | 2010-06-30 | 2013-03-13 | 周锡卫 | Method for constructing distributed power supply smart grid with hierarchy structure |
| CN102055242A (en) * | 2010-12-03 | 2011-05-11 | 湖州电力局 | Power grid model based communication link tracking method |
| CN102055242B (en) * | 2010-12-03 | 2013-08-28 | 湖州电力局 | Power grid model based communication link tracking method |
| CN103094990A (en) * | 2011-11-03 | 2013-05-08 | 国家电网公司 | Control method and device for radiation power grid |
| CN103094990B (en) * | 2011-11-03 | 2015-04-01 | 国家电网公司 | Control method and device for radiation power grid |
| CN103020154A (en) * | 2012-11-23 | 2013-04-03 | 中国电力科学研究院 | Complete backspacing searching method for tracing reasons of power failure after appearance of power distribution network fault |
| CN103248041B (en) * | 2013-03-29 | 2015-01-21 | 国家电网公司 | Looped network detection method based on bus depth conflict calculation |
| CN103248041A (en) * | 2013-03-29 | 2013-08-14 | 国家电网公司 | Looped network detection method based on bus depth conflict calculation |
| CN103440396A (en) * | 2013-05-23 | 2013-12-11 | 贵州电网公司电力调度控制中心 | Intelligent analysis ticket making method and system of dispatch operation ticket |
| CN103955789B (en) * | 2014-04-18 | 2017-07-11 | 国电南瑞科技股份有限公司 | A kind of supply path analysis method based on allotment Integrated Model |
| CN105183960A (en) * | 2015-08-25 | 2015-12-23 | 国网北京市电力公司 | Generation method and apparatus for grid wiring diagram |
| CN105183960B (en) * | 2015-08-25 | 2018-08-07 | 国网北京市电力公司 | The generation method and device of electric network wiring scheme |
| CN106451412A (en) * | 2016-05-25 | 2017-02-22 | 国网山东省电力公司日照供电公司 | Power supply traceability-based important load power protection decision technology and visual display method |
| CN106451412B (en) * | 2016-05-25 | 2019-02-15 | 国网山东省电力公司日照供电公司 | Important load based on power supply backward protects electric decision-making technic and visual display method |
| CN106571628A (en) * | 2016-11-11 | 2017-04-19 | 国网山东省电力公司青岛供电公司 | Method and apparatus for identifying connection relationships between components in power distribution network |
| CN107145963A (en) * | 2017-04-06 | 2017-09-08 | 浙江大学 | A kind of power distribution network method for searching path based on depth-first |
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Open date: 20090520 |